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Sensazone

Cistermiser’s Sensazone system controls the water supply, lighting and extractor fans within the washroom.

Save water

Sensazone controls water flow with solenoid valves. If motion is detected the valves open to supply water to urinals and cisterns. If no movement is detected for a pre-set period (configurable to 15 or 30 minutes), water supply is cut off.

As Sensazone controls water at its entry point, the water is prevented from passing uncontrolled through any defective or damaged outlet, eliminating the risk of wastage or flooding during vacant periods.

Reduce energy

The power supply to the lighting will action when Sensazone detects that the washroom is occupied and when ambient light falls below a level configurable by the user. Power will continue to be supplied for either a 0,15 or 30 minute period, depending on preference.

Extractor fan operation can also be configured; users have the option of using Sensazone to control the fan-run on time, or using the fan unit’s own timer facility (dependent on model selected).

Can be used to control both water and electrics, or water only (taps, WCs and urinals) or electrics only (e.g lights, fans).

Specification Information

When Sensazone detects a user entering the washroom it activates up to three (for hot, cold and rain/grey water supplies) solenoid valves to allow water to flow freely into the washroom.

If no motion has been detected for a user-configurable time of either 15 or 30 minutes, the valve will close the water supply to the area until further movement is detected.

Sensazone is designed to control up to three 2W 2/2 bi-stable (latching) solenoid valves per washroom area.

The following layouts provide examples of where to locate sensor(s). Sensor(s) should be located at a minimum distance of 1 metre from the entrance(s) to the washroom area.

The sensitivity of the sensor(s) can be increased to ensure that all users of the washroom area are detected. This feature is particularly applicable in an environment such as a primary school where the presence of the users such as young children, may be more difficult to detect with the normal sensitivity setting. In most applications the default setting offers effective detection.

Sensazone can be configured either manually or via the hand held remote control Infrared. Configuration Unit (ICU) which is available separately.

Case Studies

Flagship Oil Company Office Installs Sensazone for Washroom Water and Energy Management

The Grande Offices - picture courtesy of Drum Property Group

A new flagship high quality office development in Aberdeen city centre will have state-of-the-art management systems installed in all its washrooms to help control energy and water use.

Annan House forms part of a £100m redevelopment project called The Grande delivered by Drum Property Group on a former derelict site. The new offices will become the headquarters for EnQuest plc, housing the company’s 500 employees under one roof. The company is the largest UK independent oil producer in the UK North Sea.

The eight-storey offices will have 36 Sensazone washroom systems and 24 hydraulic valve kits installed to help lower water and energy consumption.

Sensazone from water management experts Cistermiser is a low-cost system which uses infrared sensors to control energy output, water supply, lighting and ventilation, providing complete management control over individual commercial washrooms while maintaining safe, hygienic washroom environments. What’s more, Sensazone is quick and easy to install, either retrospectively into an existing washroom or, as here, specified within a new facility.

Hydraulic control valves have been fitted to pipes filling the building’s urinal cisterns. Activated by water-pressure, the valve remains closed if there is no washroom activity (halting the constant flush-fill-flush cycle of the urinal cistern) until a tap is turned on. At this point the water pressure drops, the valve opens and the cistern refill cycle continues.

Hydraulic valves can still be hugely effective in terms of conserving water. Water usage can drop from some 157,000 litres for a urinal with no flush controls to just 28,000 litres per annum with a control valve.

The systems were specified by Wallace Little, while Vaughan Engineering Ltd managed the installation.

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News

Now celebrating its 40th year, the hydraulic valve from Cistermiser has been designed to reduce water consumption in commercial washrooms. David Meacock, Technical Director, explains why the automatic flush control valve continues to stand the test of time.